Fastener for windows and the like



F:eb.11,1941. W.C.W ARREN ETAL FASTENER FOR WINDOWS AND THE LIKE FiledMarch 7, 1940 cal Patented Feb. 11, 1941 PATENT OFFICE FASTENER FORWINDOWS AND THE LIKE Wilkie 0. Warren and Buel F. Buckler, Columbia, Mo.

Application March 7, 1940, Serial No. 322,712

3 Claims.

This invention relates to looks, and with regard to certain morespecific features, to automatic locks, particularly for the verticalsliding types of windows, doors and the like.

Among the several objects of the invention may be noted the provisionfor both the upper and the lower sash of the conventional sliding windowto be automatically locked into position when the window is closed, andfor the automatic locking of either sash when opened a specified orpredetermined amount from its respective closed position; the provisionof apparatus of the class described which is compact enough for use inconnection with conventional counter-balanced, sliding type windows andthe like; and the provision of a device of the class described which issimple, automatic and trouble proof in operation. Other objects will bein part obvious and in part pointed out hereinafter.

The invention accordingly comprises the combination of elements,features of construction and the arrangements of parts-which will bepointed out in the structures described hereinafter, and the scope ofthe application of which will be indicated in the following claims.

In the accompanying drawing in which is illustrated one of the variouspossible embodiments' of the invention,

Fig. 1 is an inside elevation of the invention;

Fig. 2 is an enlarged fragmentary view similar to Fig. 1, parts beingbroken away;

Fig. 3 is a horizontal section taken on line 3-3 of Fig. 2;

Fig. 4 is a view similar to Fig. 2 showing the inside window raisedpartially and locked, and theoutside window lowered partially andlocked; and,

Fig. 5 is a vertical section taken on line 5-5 of Fig. 4.

Similar reference characters indicate corresponding parts throughout theseveral views of the drawing.

The invention relates to the automatic locking of the conventionalcounter-balanced type of window sash, and the like, when it is broughtto a closed or near closed position, also providing a means by whichfresh air may be admitted to the room by raising the lower sash a shortdistance, or by lowering the upper sash a distance, while still havingthe sashes firmly and automatically secured from being further lowered,or raised as the case may be from the outside. Adjustments of the sashesmay be easily made from the inside by simply turning an operatinghandle, thereby releasing and freeing both windows with one operation.

Referring now more particularly to the drawing, there is shown atnumeral 2| a wall in which is a window frame 23 having an interior space25 for movement of the counterweights 21 and ropes 29. Inside guides 3|are provided for lower and upper window sashes 33 and 35, respectively.

At the upper right-hand side of the lower sash 33, and at the lowerright-hand side of the upper sash 35, are inserted respective bolt cases9, each of which carries a cover plate Hi by means of which it may befastened by screws 31 to the respective sash. Each bolt case 9 carries asliding bolt I I normally biased outward by a coil spring I2. Each boltH is interiorly shouldered so as to provide a stop against the inside ofthe respective cover l0, so as to limit outward movement. Each case 9may be applied simply by drilling a hole in the sash and sinking thecase therein. A small portion is mortised out to accommodate the coverl0 and the device is then fastened by means of screws 31. The simplicityof application of the bolts is thus apparent.

Opposite the upper part of the inside window and also opposite the lowerpart of the outside Window are adjacent cases I having covers 2. Thecases I are mortised into the guides 3| of the frame 23 and screws 39hold down the assemblies.

Within each case is a pair of guide pins 6 which slidably support atumbler 4. Behind each tumbler 4 in its respective case is a rotary cam3 mounted upon a common shaft 1 and arranged so that upon rotation ofthe shaft (counterclockwise in Fig. 2), the tumblers will be forced tothe left, so that pairs of lugs 5 thereon become positioned flushv inpairs of openings 4|. Under these conditions any bolt opposite anyopening 4| is prevented from intersecting the opening and will ridefreely thereover and along the face of the cover 2, which being mortisedis flush with the bottom of the respective guide 3|. Under suchconditions the respective window carrying the respective bolt ll may beopened or closed freely, the springs l2 being compressed at this time.

On the other hand, when the cam 3 is rotated clockwise (an opening 43permitting; see Fig. 4)

the bias of any bolt which may be opposite any opening 4| will force inthe tumbler 4 (Fig. 4), thus causing the bolt II to intersect therespective opening 4| and lock the window.

Two openings 4| are carried in each case I, and a pair of cases is usedin adjacent guides 3|. Thus, when the cam 3 is in the position shown inFig. 4, the bolt H in the upper end of the lower sash 33 springs intothe upper opening 4| of case or into the lower opening 4| in the samecase, when the lower window is lowered, as in Fig. 1. Likewise, the boltH in the upper outer window will spring into the lower opening 4| in itsrespective case I when said outer sash 35 is lowered, and will springinto the upper opening 4| when the outer sash is raised to its shutposition. Briefly, either window will then be automatically bolted(locked) shut if closed, and will be locked open a predetermined amountif moved toward open position.

There is a cam 3 in each case I, and both cams are carried upon theshaft 1 which intersects both cases I. A single control handle 8 isprovided.

The device may be installed by having plates 2 mortised flush into theways of the window frame at positions where the bottom of the upper sashand the top of the lower sash overlap. A hole is drilledthrough theframe to accommodate the cam-operating shaft I, to which is securedhandle 8.

At the proper position at the lower edge of the upper sash is mortisedflush the barrel assembly for the res ective bolt, and the other barrelassembly for the other bolt is installed at the upper section of thesliding side of the lower sash.

The operation of the device for the above installation would be asfollows:

When the upper sash for instance is raised to its extreme upperposition, the respective bolt II will enter the respective upper hole4|, thereby securing the upper sash in this position auto matically,until released. When the lower sash is brought to its lowermost closedposition, lower sash bolt ll, will enter the respective lower hole ll,thereby automatically securing the sash in this locked position.

To release the locked sashes from any locked position, operating handle8 is turned counterclockwise, thereby moving shaft 1 which in turnoperates cams 3 to force tumbler 4 carrying lugs 5 outward, therebyforcing bolts II from holes 4| and bringing the bolts to a positionflush with the surface of plates 2.

Either the lower or upper sash may then be raised or lowered as the casemay be any amount less than the distance between holes ll, therebypermitting admission of fresh air from the outside with the knowledgethat the sash will become locked when it is raised or lowered an amountequal to the distance of the above mentioned holes provided the handle 8is turned clockwise to locking position. The operating handle 3 cannotbe reached from the outside of the building.

If it is desired to open either window further than provided for above,the operator needs only to set the handle 8 to unlocked(counterclockwise) position and the window may then be further opened,or closed freely.

From the above it will be seen that any locking or unlocking operationserves to control locking of two double hung windows. Only one controlhandle 3 is needed.

The mounting of the tumbler 4 is quite simple. The showing of parallelmovement of both ends of the tumbler. along the guides 6 is ideal and inpractical operation the tumbler may pivot somewhat on the end oppositeto the one at which the bolt operates.

In view of the above, it will be seen that the several objects of theinvention are achieved and other advantz: -eous results attained.

As many changes could be made in carrying out the above constructionswithout departing from the scope of the invention, it is intended thatall matter contained in the above description or shown in theaccompanying drawing shall be interpreted as illustrative and not in alimiting sense.

We claim:

1. A look for a window which is slidable in a guide, comprising a membermortised into the guide and forming a. recess provided with a lower andan upper opening in the guide, a tumbler in the recess movable towardand away from said openings and having portions movable to positions insaid openings flush with the portion of said mortised member which liesin the guide, said window having a recess, a bolt in said window recessnormally biased outwardly therefrom and traversing said openings duringwindow movement and being movable under its bias into one of saidopenings in the absence of the flush portions of the tumbler, manualmeans for movi ing the tumbler toward the openings to force the boltfrom any opening, and means whereby when said manual means is oppositelypositioned, the bias of the bolt in any opening ejects the flush portionof the tumbler therefrom to automatically lock the window.

2. A lock for double-hung windows sliding in adjacent guides comprisingadjacent cases in the two guides forming recesses each of which has aplurality of inlet openings, a tumbler in each recess movable toward andaway from the openings therein and having portions adapted to bepositioned in said openings flush with the exterior portion of the casewhich is in the respective guide, manual control means for operating thetumblers simultaneously, said windows having pockets for respectivelyreceiving sliding bolts, means biasing the respective bolts out of theopenings, each bolt traversing the inlet openings of the adjacent caseof the respective guide, each bolt passing over the respective openingswhen the respective tumbler is forced to flush position by the manualoperating means but adapted to pass into one or another opening when thetumbler is not forced by said manual operating means, the openings in agiven case being arranged for locking the respective window shut or in apredetermined open position.

3. A look for double-hung windows sliding in two adjacent guides,comprising adjacent cases mortised with external surfaces flush with theguide surfaces in the two guides and forming 0 recesses each of WhlChhas two inlet openings presented toward a window, a tumbler in each casemovable toward and away from the openings therein and having portionsadapted to be positioned in said openings flush with the externalsurface of the respective case, single manual control means foroperating both tumblers simultaneously, each window having a pocket forrespectively receiving a sliding bolt, means biasing the respectivebolts out of the respective pockets, each bolt traversing the inletopenings of the adjacent case in the respective guide, each bolt passing,over the respective openings when the respective tumbler is forced toflush position by the manual operating means but adapted to pass intoone or another opening when the tumbler is not forced by said manualoperating means, the openings in each case being arranged for lockingthe respective window shut or in a. predetermined open. position inwhich the manual operating means cannot be manually reached from theoutside of the Windows.

W. C. WARREN. BUEL F. BUCKLER.

